| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | var Observable_1 = require("../Observable");
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| 4 | var isArray_1 = require("../util/isArray");
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| 5 | var map_1 = require("../operators/map");
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| 6 | var isObject_1 = require("../util/isObject");
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| 7 | var from_1 = require("./from");
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| 8 | function forkJoin() {
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| 9 | var sources = [];
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| 10 | for (var _i = 0; _i < arguments.length; _i++) {
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| 11 | sources[_i] = arguments[_i];
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| 12 | }
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| 13 | if (sources.length === 1) {
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| 14 | var first_1 = sources[0];
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| 15 | if (isArray_1.isArray(first_1)) {
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| 16 | return forkJoinInternal(first_1, null);
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| 17 | }
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| 18 | if (isObject_1.isObject(first_1) && Object.getPrototypeOf(first_1) === Object.prototype) {
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| 19 | var keys = Object.keys(first_1);
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| 20 | return forkJoinInternal(keys.map(function (key) { return first_1[key]; }), keys);
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| 21 | }
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| 22 | }
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| 23 | if (typeof sources[sources.length - 1] === 'function') {
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| 24 | var resultSelector_1 = sources.pop();
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| 25 | sources = (sources.length === 1 && isArray_1.isArray(sources[0])) ? sources[0] : sources;
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| 26 | return forkJoinInternal(sources, null).pipe(map_1.map(function (args) { return resultSelector_1.apply(void 0, args); }));
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| 27 | }
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| 28 | return forkJoinInternal(sources, null);
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| 29 | }
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| 30 | exports.forkJoin = forkJoin;
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| 31 | function forkJoinInternal(sources, keys) {
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| 32 | return new Observable_1.Observable(function (subscriber) {
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| 33 | var len = sources.length;
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| 34 | if (len === 0) {
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| 35 | subscriber.complete();
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| 36 | return;
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| 37 | }
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| 38 | var values = new Array(len);
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| 39 | var completed = 0;
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| 40 | var emitted = 0;
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| 41 | var _loop_1 = function (i) {
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| 42 | var source = from_1.from(sources[i]);
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| 43 | var hasValue = false;
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| 44 | subscriber.add(source.subscribe({
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| 45 | next: function (value) {
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| 46 | if (!hasValue) {
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| 47 | hasValue = true;
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| 48 | emitted++;
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| 49 | }
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| 50 | values[i] = value;
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| 51 | },
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| 52 | error: function (err) { return subscriber.error(err); },
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| 53 | complete: function () {
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| 54 | completed++;
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| 55 | if (completed === len || !hasValue) {
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| 56 | if (emitted === len) {
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| 57 | subscriber.next(keys ?
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| 58 | keys.reduce(function (result, key, i) { return (result[key] = values[i], result); }, {}) :
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| 59 | values);
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| 60 | }
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| 61 | subscriber.complete();
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| 62 | }
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| 63 | }
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| 64 | }));
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| 65 | };
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| 66 | for (var i = 0; i < len; i++) {
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| 67 | _loop_1(i);
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| 68 | }
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| 69 | });
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| 70 | }
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| 71 | //# sourceMappingURL=forkJoin.js.map |
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